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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.util; |
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package uk.org.iscream.cms.server.util; |
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//---IMPORTS--- |
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import java.util.Date; |
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import java.text.DateFormat; |
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import java.util.Locale; |
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/** |
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* This class provides static methods to format the |
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//---FINAL ATTRIBUTES--- |
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/** |
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* An array of names of verbosity levels. |
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* Thus logging messages are now "classed" by the level |
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*/ |
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private final static String[] VERBOSITY_NAMES = {"FATAL ", "ERROR ", "WARNING", "SYSMSG ", "SYSINIT", "DEBUG "}; |
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//---STATIC METHODS--- |
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/** |
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* This is of use to the override of the toString() as |
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* implemented by most of the iscream objects. |
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* |
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* It has support for null friendly name and null class name |
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* bit NOT both at the same time. |
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* |
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* @param friendlyName the configured name of the instance of the calling component the class is in (eg "filter1") |
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* @param className the class name of the calling class, as obtained by getClass().getName() |
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* @param revision the CVS Revision number for the calling class |
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* @return an iscream standard name to be used as a toString() |
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*/ |
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public static String getName(String friendlyName, String className, String revision) { |
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if (friendlyName == null) { |
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return "{"+ className + "(v" + revision.substring(11, revision.length() - 2) + ")}"; |
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if (friendlyName == null && className == null) { |
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return "{static(v" + revision.substring(11, revision.length() - 2) + ")}"; |
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} else if (friendlyName == null) { |
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return "{"+ tidyClassName(className) + "(v" + revision.substring(11, revision.length() - 2) + ")}"; |
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} else if (className == null) { |
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return friendlyName + "{static(v" + revision.substring(11, revision.length() - 2) + ")}"; |
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} else { |
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return friendlyName + "{"+ className + "(v" + revision.substring(11, revision.length() - 2) + ")}"; |
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return friendlyName + "{"+ tidyClassName(className) + "(v" + revision.substring(11, revision.length() - 2) + ")}"; |
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} |
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} |
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/** |
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* This method generates a nicely formatted line for the log, |
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* including the date/time and the source of the message. The date |
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* and time are formatted using the DateFormat class, and the source |
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* class is formatted using the toString() method found in every |
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* source file. This is then prepended to the message and returned. |
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* |
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* @param source A string representation of the calling object. |
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* @param verbosity The verbosity of the message. |
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* @param message The message to be logged. |
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* @return The string to be written to the log. |
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*/ |
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public static String formatLogLine(String source, int verbosity, String message){ |
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String date = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM).format(new Date()); |
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return "[" + date + "] [" + VERBOSITY_NAMES[verbosity] + "] " + source + ": " + message; |
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} |
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/** |
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* If the class name begins with uk.org.iscream.cms.server |
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* this method will trim it off, otherwise it |
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* leaves the string unchanged. |
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* |
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* @param className the name of a class |
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* |
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* @return the tidy version of it |
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*/ |
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private static String tidyClassName(String className) { |
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String prefix = "uk.org.iscream.cms.server"; |
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if (className.startsWith(prefix)) { |
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return className.substring(prefix.length()+1); |
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} |
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return className; |
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} |
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//---CONSTRUCTORS--- |
